Chrumbo with Crenby

When Chrumbo with Crenby is cast, all creatures are equipped with a knitted woolly hat.
This renders their power and toughness null and void, instead becoming cheer and merryness. A Christmas truce has begun. The battle is over.
Santa's orders.
—
Behind the Christmas tree and below the snow, lurks
a festive beast that continues to grow.
Beneath the presents and beyond the sleigh, the giant knit hat strikes its first blow.